docs: def radiance2tb(rad, wavelength):
      """
      Get the Tb from the radiance using the Planck function
  
      rad:
          Radiance in SI units
      wavelength:
          Wavelength in SI units (meter)
      """
      from pyspectral.blackbody import blackbody_rad2temp as rad2temp
      return rad2temp(wavelength, rad)